%0 Journal Article
	%A W. Suparta and  M. A. Mohd. Ali and  M. S. Jit Singh and  B. Yatim and  T. Motoba and  N. Sato and  A. Kadokura and  G. Bjornsson
	%D 2011
	%J International Journal of Geological and Environmental Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 60, 2011
	%T GPS TEC Variation Affected by the Interhemispheric Conjugate Auroral Activity on 21 September 2009
	%U https://publications.waset.org/pdf/8568
	%V 60
	%X This paper observed the interhemispheric conjugate
auroral activity occurred on 21 September 2009. The GPS derived
ionospheric total electron content (TEC) during a weak substorm
interval recorded at interhemispheric conjugate points at Husafell in
Iceland and Syowa in Antarctica is investigated to look at their
signatures on the auroral features. Selection of all-sky camera (ASC)
images and keogram at Tjörnes and Syowa during the interval
00:47:54 – 00:50:14 UT on 21 September 2009 found that the auroral
activity had exerted their influence on the GPS TEC as a
consequence of varying interplanetary magnetic field (IMF) By
polarity.
	%P 821 - 824